A standard roll of roof tar paper typically covers about 200 square feet. The size of the roll is usually 36 inches wide and 72 feet long. However, coverage may vary slightly depending on the manufacturer, so it's always best to check the specifications on the product label.
300 square feet.
Five--a roll will cover 400 square feet of area.
The area of a circle with a diameter of 18 feet can be calculated by: A=pie x r x r . So, in this case A = 3.14 x 9 * 9= 255 square feet. If you know how many square feet are in a roll of sod, you can find your answer.
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To calculate the square feet of a roll of paper towels, first determine the dimensions of the roll. Measure the width of the paper towel (in feet) and the length of the roll (also in feet). Multiply these two measurements together: Square Feet = Width (ft) × Length (ft). If the length is given in yards or inches, convert it to feet before performing the calculation.
A standard roll of 30 lb roofing paper typically contains about 1,000 square feet of material. Given that the width of the roll is usually 36 inches (3 feet), you can calculate the lineal feet by dividing the total square footage by the width in feet. Therefore, a roll of 30 lb roofing paper generally provides approximately 333 lineal feet.
26 feet
37.5 square feet.
The roll has 12.5 square feet of material.
300 square feet.
1 square = 100 square feet x 8 squares = 800 square feet. 15# felt comes in different sizes. Multiply the length of the roll x the width of the roll to find out how many square feet are in a roll. 800 divided by the square feet per roll = how many rolls you need.
8,435 sq. feet
15 lb. 400 sq. ft. 30 lb. 200 sq. ft.
500
88
Easy way to figure it: If the roll is 3 feet by 100 feet, it would cover 300 square feet. But you have to overlap it about 6 inches at top and bottom, so once you subtract that, it would cover about 200 square feet., When figuring a job, add some for overlap at valleys, chimneys, etc. . . Hope this helps. A standard roll of 30# felt covers 216 square feet; one-half the area of a roll of 15# felt, which covers 432 square feet. Rows are overlapped 2 inches, not 6 inches.